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Fuentes G.A.,PRISM | Fuentes G.A.,Foundation University
11th AIAA Aviation Technology, Integration,and Operations (ATIO) Conference, including the AIAA Balloon Systems Conference and 19th AIAA Lighter-Than-Air Technology Conference | Year: 2011

New conflicts around the world have once more created the need for an effective light attack, close air support aircraft that can in a very short notice provide effective support through pinpoint attacks with overwhelming firepower without putting friendly troops in danger. The recent resurgence of the need for this type of airplane also created the need for a lower cost yet effective option to today's high performance legacy aircraft such as the Fairchild Republic A-10 Thunderbolt II and the Lockheed Martin F-16 Viper; these aircraft are effective today in their intended roles, however they are significantly more costly to operate compared with lower cost turboprops or even turbofan aircraft that may be able to perform the light attack/close air support mission. This paper examines the key factors that need to be taken into account to design a more effective aircraft fulfilling this mission while keeping costs as low as possible with today's technology. © 2011 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.


Eliat P.-A.,PRISM | Olivie D.,University of Rennes 1 | Olivie D.,Rennes University Hospital Center | Saikali S.,Rennes University Hospital Center | And 5 more authors.
Neurology Research International | Year: 2012

An interesting approach has been proposed to differentiate malignant glioneuronal tumors (MGNTs) as a subclass of the WHO grade III and IV malignant gliomas. MGNT histologically resemble any WHO grade III or IV glioma but have a different biological behavior, presenting a survival twice longer as WHO glioblastomas and a lower occurrence of metastases. However, neurofilament protein immunostaining was required for identification of MGNT. Using two complementary methods, dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) and texture analysis (MRI-TA) from the same acquisition process, the challenge is to in vivo identify MGNT and demonstrate that MRI postprocessing could contribute to a better typing and grading of glioblastoma. Results are obtained on a preliminary group of 19 patients a posteriori selected for a blind investigation of DCE T1-weighted and TA at 1.5 T. The optimal classification (0/11 misclassified MGNT) is obtained by combining the two methods, DCE-MRI and MRI-TA. © 2012 Pierre-Antoine Eliat et al.


Anciaux N.,French Institute for Research in Computer Science and Automation | Bouganim L.,French Institute for Research in Computer Science and Automation | Delot T.,French Institute for Research in Computer Science and Automation | Delot T.,University of Valenciennes and Hainaut‑Cambresis | And 4 more authors.
Proceedings of the VLDB Endowment | Year: 2014

According to a wide range of studies, IT should become a key facilitator in establishing primary education, reducing mortality and supporting commercial initiatives in Least Developed Countries (LDCs). The main barrier to the development of IT services in these regions is not only the lack of communication facilities, but also the lack of consistent information systems, security procedures, economic and legal support, as well as political commitment. In this paper, we propose the vision of an infrastructureless data platform well suited for the development of innovative IT services in LDCs. We propose a participatory approach, where each individual implements a small subset of a complete information system thanks to highly secure, portable and low-cost personal devices as well as opportunistic networking, without the need of any form of infrastructure. We review the technical challenges that are specific to this approach. © 2014 VLDB Endowment.


Anciaux N.,French Institute for Research in Computer Science and Automation | Bouganim L.,French Institute for Research in Computer Science and Automation | Delot T.,French Institute for Research in Computer Science and Automation | Delot T.,University of Valenciennes and Hainaut‑Cambresis | And 4 more authors.
SIGMOD Record | Year: 2014

According to many studies, IT should become a key facilitator in establishing primary education, reducing mortality or supporting commercial initiatives in Least Developed Countries. The main barrier to the development of IT services in these regions is not only the lack of communication facilities, but also the lack of consistent information systems, security procedures, economic and legal support, as well as political commitment. In this paper, we propose the vision of an infrastructure-less data platform well suited for the development of innovative IT services in Least Developed Countries. We propose a participatory approach, called Folk-IS, where each individual implements a small subset of a complete information system thanks to highly secure, portable and low-cost personal devices as well as opportunistic networking, without the need for any form of infrastructure. In this paper, we focus on the exploitation and feasibility analysis of the Folk-IS vision. We also review the technical challenges that are specific to this approach.


News Article | November 24, 2016
Site: marketersmedia.com

VANCOUVER, BC / ACCESSWIRE / November 24, 2016 / Miranda Gold Corp. ("Miranda") (TSX-V: MAD) and Prism Resources Inc. ("Prism") (TSX-V: PRS) are pleased to announce drill results from our Cerro Oro Project in Colombia. Prism and Miranda "scout" drill-tested a large low-sulfidation epithermal gold system at Cerro Oro, where mapping and sampling indicate the potential for multiple high-grade gold veins occurring within broader zones of lower grade disseminated and fracture controlled mineralization. The original planned program called for four to five angle holes totaling 1,200 meters. Due to failure to obtain important surface easements in a timely manner, the drill program was limited to three angle holes totaling 472 meters. Miranda will continue to work on easement agreements. All three holes completed have significant mineralization. CO-001: 1m @ 3.67 g Au/t in a locally coliform, sulfide-quartz breccia, interpreted to be a down-dip and strike extension of the "Victoria Vein". CO-003: 1.45m @ 3.53 g Au/t in a heterolithic, matrix supported hydrothermal breccia that forms a contact zone with a dacite porphyry dike. The main breccia is subsequently injected by finer "fluidized" breccia. Several crosscutting sulfide veinlets occur in matrix and clasts. This is a newly recognized mineralization style on the project and indicates complexity and multi-stage mineralization in the system. The Colombian Ministry of Interior has notified Miranda that a "Consulta Previa" with nearby indigenous peoples will be required for any additional work on the project. Miranda has started the "Consulta Previa" process, and intends to pursue it expeditiously. Prism has decided to withdraw from the joint venture in the Cerro Oro project; partially because the planned drill program is delayed, and because Prism intends to focus on the exploration of their recent acquisition of the past-producing Huampar Mine in Peru, a historic silver-gold producer. As a consequence of the delay in the planned Cerro Oro drill program, Miranda has advised Prism that their obligations under the joint venture agreement are now satisfied, and that Prism may terminate the agreement with no monetary consequence. Miranda is pleased to have had Prism as a partner at Cerro Oro, and both companies will continue to consider partnering other Miranda projects in Colombia. Miranda will look for another funding partner on the project. Miranda drilling demonstrated a proof of exploration target concept, and encountered significant multi-stage, telescoped primary epithermal and possible secondary porphyry-style alteration. This alteration and mineralization complexity was not recognized previous to core drilling. The geometry of the "Victoria Vein" and other veins and vein-breccia were defined, which will help design follow up drilling. These drill results show a strike extent of 130 m along the "Victoria" fault-breccia-vein zone extending from the surface to a depth of 80m. Gold mineralization is strongly correlated with mercury (to 9.6 ppm), antimony (to 139 ppm), arsenic (to 1,900 ppm) and zinc (to 4,740 ppm). No other elements show appreciable elevated values. In conventional zoning models for epithermal systems, high level to low level elemental occurrences are - Mercury -> Antimony -> Arsenic -> Gold. In the same zoning models, gold is typically minor or absent in the mercury zone and gold begins to occur more strongly at the deepest extent of antimony, while the highest gold grades occur where arsenic begins to diminish as a major element. Zinc is associated with gold in many South American epithermal deposits, and the gold-zinc association at Cerro Oro compares favorably to the same relationship seen at nearby Marmato. Using the same exploration zoning model, Marmato would occur with similar abundant zinc and adularia, but below the zone of mercury-antimony observed at Cerro Oro. Table of significant drill results defined as 1m or greater, greater than 0.300 g Au/t. True thickness cannot be estimated but all holes are angled to test high-angle vein-faults with an approximate 72° southeast dip: All five plus-1g Au/t intercepts contained either banded quartz vein or vein-breccia over 1m or greater. The minus-1g Au/t intercepts contained pyritic stockwork or sheeted pyritic veinlets and disseminated pyrite. Fine-grained adularia is associated with all gold occurrences. Some breccias contain matrix supported, mineralized clasts that may be explosively injected from lower depths. Breccias are from 6 m to 20 m wide, although the significant gold intervals within them are narrower. However in CO-001, 4.7 m of mixed banded vein and vein-breccia are significantly mineralized. Alteration is typified by abundant mixed clays and more local silicification. In core, up to four cross-cutting events are observed. Adularia has two habits of occurrence - both as vein and veinlet selvages or pervasive within other alteration. This limited drill program tests 130m of a system that has a mapped 1.5km strike and 600m width. Miranda believes that intercepting multiple mineralized zones justifies continued drill tests of the large epithermal gold system at Cerro Oro. Widely used epithermal zoning models suggest higher gold grades are highly permissible below a near surface zone one of high mercury and antimony. Miranda intends to do gridded auger soils over the entire alteration zone and where possible determine clay species in soil pits, surface exposures and existing drill core. Gridded soils should indicate the centers of stronger and more continuous areas of gold mineralization. Areas of high-temperature illite may indicate upwelling fluid centers above high-grade mineralization. After modeling structural-dilational controls, future drilling will be designed to test below the mercury-antimony zone. Miranda controls approximately 1,100 hectares at Cerro Oro of which 711 hectares are controlled by a contract and the remainder through applications. The project is in the Caldas department 120 km south of Medellin. Cerro Oro is 14 km southwest of the Marmato District. Both occur on a northeast trend of several aligned epithermal systems. Marmato, believed to be an analog target for Cerro Oro, has a greater than 150-year history of mining. The Cerro Oro gold system has seen less erosion than Marmato, and a greater vertical extent of mineralization may be preserved. Classic epithermal zoning models suggest that the abundant mercury and antimony at surface at Cerro Oro indicate that gold endowment may be better at depth, lower in the system. Porphyry dacite stocks mapped at Cerro Oro are equivalent to the dacite porphyry hosting the veins at Marmato. At Cerro Oro, it is inferred that gold-bearing fluids from vein structures flooded into porous wall rock near the paleo surface. While the porous rocks at surface are important for potential broad zones of lower grade mineralization, veins may be better developed within competent dacite porphyry at depth. Data disclosed in this press release, have been reviewed and verified by Miranda's Chief Executive Officer, Joseph Hebert, C.P.G., and B.Sc. Geology, a Qualified Person as defined by National Instrument 43-101. Miranda is a gold exploration company active in Colombia and Alaska. Miranda employs a prospect generator and joint venture business model. Miranda focuses on generating projects with world-class discovery potential, and then joint ventures multiple projects to maximize the chance of discovery, while reducing financial risk and shareholder dilution. Miranda has active exploration joint ventures with Montezuma Mines Inc., and a production joint venture with Gold Torrent Inc. Miranda is working actively to acquire and joint venture more projects. Prism Resources Inc. is a junior exploration company listed on the TSX Venture Exchange. ON BEHALF OF THE BOARDS OF DIRECTORS OF BOTH MIRANDA AND PRISM For more information related to Miranda: Joseph Hebert, Chief Executive Officer +1-775-340-0450 Email: joseph.hebert75@gmail.com www.mirandagold.com For more information related to Prism contact: Robert (Bob) Baxter Prism Resources Inc. +1-778-928-1864 Email: bbaxter@prismresourcesinc.com Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. U.S. investors are cautioned that mineral deposits on adjacent properties are not indicative of mineral deposits on our properties. We advise U.S. investors that the SEC's mining guidelines strictly prohibit information of this type in documents filed with the SEC. This news release contains forward-looking statements that are based on the Company's current expectations and estimates. Forward-looking statements are frequently characterized by words such as "plan", "expect", "project", "intend", "believe", "anticipate", "estimate", "suggest", "indicate" and other similar words or statements that certain events or conditions "may" or "will" occur. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause actual events or results to differ materially from estimated or anticipated events or results implied or expressed in such forward-looking statements. Such factors include, among others: the actual results of current exploration activities; conclusions of economic evaluations; changes in project parameters as plans to continue to be refined; possible variations in ore grade or recovery rates; accidents, labor disputes and other risks of the mining industry; delays in obtaining governmental approvals or financing; and fluctuations in metal prices. There may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein. VANCOUVER, BC / ACCESSWIRE / November 24, 2016 / Miranda Gold Corp. ("Miranda") (TSX-V: MAD) and Prism Resources Inc. ("Prism") (TSX-V: PRS) are pleased to announce drill results from our Cerro Oro Project in Colombia. Prism and Miranda "scout" drill-tested a large low-sulfidation epithermal gold system at Cerro Oro, where mapping and sampling indicate the potential for multiple high-grade gold veins occurring within broader zones of lower grade disseminated and fracture controlled mineralization. The original planned program called for four to five angle holes totaling 1,200 meters. Due to failure to obtain important surface easements in a timely manner, the drill program was limited to three angle holes totaling 472 meters. Miranda will continue to work on easement agreements. All three holes completed have significant mineralization. CO-001: 1m @ 3.67 g Au/t in a locally coliform, sulfide-quartz breccia, interpreted to be a down-dip and strike extension of the "Victoria Vein". CO-003: 1.45m @ 3.53 g Au/t in a heterolithic, matrix supported hydrothermal breccia that forms a contact zone with a dacite porphyry dike. The main breccia is subsequently injected by finer "fluidized" breccia. Several crosscutting sulfide veinlets occur in matrix and clasts. This is a newly recognized mineralization style on the project and indicates complexity and multi-stage mineralization in the system. The Colombian Ministry of Interior has notified Miranda that a "Consulta Previa" with nearby indigenous peoples will be required for any additional work on the project. Miranda has started the "Consulta Previa" process, and intends to pursue it expeditiously. Prism has decided to withdraw from the joint venture in the Cerro Oro project; partially because the planned drill program is delayed, and because Prism intends to focus on the exploration of their recent acquisition of the past-producing Huampar Mine in Peru, a historic silver-gold producer. As a consequence of the delay in the planned Cerro Oro drill program, Miranda has advised Prism that their obligations under the joint venture agreement are now satisfied, and that Prism may terminate the agreement with no monetary consequence. Miranda is pleased to have had Prism as a partner at Cerro Oro, and both companies will continue to consider partnering other Miranda projects in Colombia. Miranda will look for another funding partner on the project. Miranda drilling demonstrated a proof of exploration target concept, and encountered significant multi-stage, telescoped primary epithermal and possible secondary porphyry-style alteration. This alteration and mineralization complexity was not recognized previous to core drilling. The geometry of the "Victoria Vein" and other veins and vein-breccia were defined, which will help design follow up drilling. These drill results show a strike extent of 130 m along the "Victoria" fault-breccia-vein zone extending from the surface to a depth of 80m. Gold mineralization is strongly correlated with mercury (to 9.6 ppm), antimony (to 139 ppm), arsenic (to 1,900 ppm) and zinc (to 4,740 ppm). No other elements show appreciable elevated values. In conventional zoning models for epithermal systems, high level to low level elemental occurrences are - Mercury -> Antimony -> Arsenic -> Gold. In the same zoning models, gold is typically minor or absent in the mercury zone and gold begins to occur more strongly at the deepest extent of antimony, while the highest gold grades occur where arsenic begins to diminish as a major element. Zinc is associated with gold in many South American epithermal deposits, and the gold-zinc association at Cerro Oro compares favorably to the same relationship seen at nearby Marmato. Using the same exploration zoning model, Marmato would occur with similar abundant zinc and adularia, but below the zone of mercury-antimony observed at Cerro Oro. Table of significant drill results defined as 1m or greater, greater than 0.300 g Au/t. True thickness cannot be estimated but all holes are angled to test high-angle vein-faults with an approximate 72° southeast dip: All five plus-1g Au/t intercepts contained either banded quartz vein or vein-breccia over 1m or greater. The minus-1g Au/t intercepts contained pyritic stockwork or sheeted pyritic veinlets and disseminated pyrite. Fine-grained adularia is associated with all gold occurrences. Some breccias contain matrix supported, mineralized clasts that may be explosively injected from lower depths. Breccias are from 6 m to 20 m wide, although the significant gold intervals within them are narrower. However in CO-001, 4.7 m of mixed banded vein and vein-breccia are significantly mineralized. Alteration is typified by abundant mixed clays and more local silicification. In core, up to four cross-cutting events are observed. Adularia has two habits of occurrence - both as vein and veinlet selvages or pervasive within other alteration. This limited drill program tests 130m of a system that has a mapped 1.5km strike and 600m width. Miranda believes that intercepting multiple mineralized zones justifies continued drill tests of the large epithermal gold system at Cerro Oro. Widely used epithermal zoning models suggest higher gold grades are highly permissible below a near surface zone one of high mercury and antimony. Miranda intends to do gridded auger soils over the entire alteration zone and where possible determine clay species in soil pits, surface exposures and existing drill core. Gridded soils should indicate the centers of stronger and more continuous areas of gold mineralization. Areas of high-temperature illite may indicate upwelling fluid centers above high-grade mineralization. After modeling structural-dilational controls, future drilling will be designed to test below the mercury-antimony zone. Miranda controls approximately 1,100 hectares at Cerro Oro of which 711 hectares are controlled by a contract and the remainder through applications. The project is in the Caldas department 120 km south of Medellin. Cerro Oro is 14 km southwest of the Marmato District. Both occur on a northeast trend of several aligned epithermal systems. Marmato, believed to be an analog target for Cerro Oro, has a greater than 150-year history of mining. The Cerro Oro gold system has seen less erosion than Marmato, and a greater vertical extent of mineralization may be preserved. Classic epithermal zoning models suggest that the abundant mercury and antimony at surface at Cerro Oro indicate that gold endowment may be better at depth, lower in the system. Porphyry dacite stocks mapped at Cerro Oro are equivalent to the dacite porphyry hosting the veins at Marmato. At Cerro Oro, it is inferred that gold-bearing fluids from vein structures flooded into porous wall rock near the paleo surface. While the porous rocks at surface are important for potential broad zones of lower grade mineralization, veins may be better developed within competent dacite porphyry at depth. Data disclosed in this press release, have been reviewed and verified by Miranda's Chief Executive Officer, Joseph Hebert, C.P.G., and B.Sc. Geology, a Qualified Person as defined by National Instrument 43-101. Miranda is a gold exploration company active in Colombia and Alaska. Miranda employs a prospect generator and joint venture business model. Miranda focuses on generating projects with world-class discovery potential, and then joint ventures multiple projects to maximize the chance of discovery, while reducing financial risk and shareholder dilution. Miranda has active exploration joint ventures with Montezuma Mines Inc., and a production joint venture with Gold Torrent Inc. Miranda is working actively to acquire and joint venture more projects. Prism Resources Inc. is a junior exploration company listed on the TSX Venture Exchange. ON BEHALF OF THE BOARDS OF DIRECTORS OF BOTH MIRANDA AND PRISM For more information related to Miranda: Joseph Hebert, Chief Executive Officer +1-775-340-0450 Email: joseph.hebert75@gmail.com www.mirandagold.com For more information related to Prism contact: Robert (Bob) Baxter Prism Resources Inc. +1-778-928-1864 Email: bbaxter@prismresourcesinc.com Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. U.S. investors are cautioned that mineral deposits on adjacent properties are not indicative of mineral deposits on our properties. We advise U.S. investors that the SEC's mining guidelines strictly prohibit information of this type in documents filed with the SEC. This news release contains forward-looking statements that are based on the Company's current expectations and estimates. Forward-looking statements are frequently characterized by words such as "plan", "expect", "project", "intend", "believe", "anticipate", "estimate", "suggest", "indicate" and other similar words or statements that certain events or conditions "may" or "will" occur. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause actual events or results to differ materially from estimated or anticipated events or results implied or expressed in such forward-looking statements. Such factors include, among others: the actual results of current exploration activities; conclusions of economic evaluations; changes in project parameters as plans to continue to be refined; possible variations in ore grade or recovery rates; accidents, labor disputes and other risks of the mining industry; delays in obtaining governmental approvals or financing; and fluctuations in metal prices. There may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein.


News Article | February 16, 2017
Site: www.prnewswire.com

PHOENIX, February 16, 2017 /PRNewswire/ -- Win Helps Drive the Million Dollar Teacher Project Towards Their Mission    The design team from PRISM Studios, part of Clairvoyant LLC, created a world class web presence for the Million Dollar Teacher Project (MDT Project)...


Fuentes G.A.,PRISM | Fuentes G.A.,Liberators University Foundation
11th AIAA Aviation Technology, Integration,and Operations (ATIO) Conference, including the AIAA Balloon Systems Conference and 19th AIAA Lighter-Than-Air Technology Conference | Year: 2011

Safety has always been a paramount consideration for the aerospace industry in general, without safety any vehicle, system, subsystem or entire project will not survive in the long run. Over time, technical reliability has improved to the point that today's hardware can be considered very reliable. The challenge then becomes managing organizational safety taking into account the human and administrative factors involved so that mishaps and disastrous outcomes can be minimized. System Safety applied to both the organization and the people involved in a project is then the answer to improving safety across the entire Aerospace industry. There is a new mandate from the International Civil Aviation Organization (ICAO) for the aviation industry worldwide to adopt System Safety practices in order to improve the bar of safety for the entire industry. This paper addresses the challenges of the entire Aerospace industry in order to effectively implement System Safety practices (SMS). © 2011 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.


Boussaton O.,Cortex Inc. | Cohen J.,PRiSM | Tomasik J.,Supelec | Barth D.,PRiSM
NetGCoop 2012 - 6th International Conference on Network Games, Control and Optimization | Year: 2012

Route selection is one of the key problems to be treated in telecommunication management and control. We are interested in finding the routes which are balanced from the congestion or cost point of view. The 'classical' load balancing concerns an entire route, from its source node to its destination, which is selected according to its cost. This approach requires therefore the analysis of all existing routes whose number in a graph is exponential in function of the network size. This phenomenon makes a game on path level (macroscopic level) unrealistic. Our goal is to propose an algorithm which can find Nash equilibria by examining a polynomial number of graph network elements. Our main idea consists in choosing an outgoing arc in each node in exception of the destination (microscopic level) instead of an entire path. We achive this by proposing a distributed algorithm which performs this selection in network nodes. We provide the analysis which proves that our algorithm converges weakly to Nash equilibria. The computation results are encouraging to continue the purely numerical work on the algorithm implementation. © 2012 Univ of Avignon.


Bernarda T.,British Petroleum | Buib A.,PRiSM | Pilardb L.,PRiSM
Proceedings - IEEE Symposium on Computers and Communications | Year: 2010

We propose a fully decentralized algorithm that constructs and maintains clusters over a network. This algorithm maintains a stable size within the clusters among a network subject to frequent connection and disconnection. We use the notion of a circulating token that collects data (called a circulating word). This token moves according to a random walk scheme. The aim of the algorithm is to adapt solutions that use random walks and circulating words to large scale networks. © 2010 IEEE.


Ben-Othman J.,PRiSM | Bessaoud K.,PRiSM | Bui A.,PRiSM | Pilard L.,PRiSM
Proceedings - IEEE Symposium on Computers and Communications | Year: 2011

Wireless Sensor Networks lifetime mainly depends on energy saving efficiency. In this paper, we propose an energy-efficient self-stabilizing topology control protocol for WSN. We reduce the transmission power of each node so as to maintain network connectivity while saving maximum energy. Besides, we propose an approximation algorithm for minimum weighted connected dominating set that builds a virtual backbone formed by sensors with maximum energy. This backbone is used for efficient routing purpose. Through our simulation results, we show the efficiency of our proposed algorithm. © 2011 IEEE.

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